#include <bits/stdc++.h>
using namespace std;

#define int int64_t
#define endl "\n"

using PII = pair<int, int>;
using TII = tuple<int, int, int>;
template<class T> using V = vector<T>;
using i64 = long long;
using i128 = __int128;
using u64 = unsigned long long;

#define FOR(i, a, b) for (int i = (int)(a); i <= (int)(b); i++)
#define FOR2(i, a, b, c) for (int i = (int)(a); i <= (int)(b); i += c)
#define FORD(i, b, a) for (int i = (int)(a); i >= (int)(b); i--)
#define FORD2(i, b, a, c) for (int i = (int)(a); i >= (int)(b); i -= c)
#define ALL(a) a.begin(), a.end()
#define RALL(a) a.rbegin(), a.rend()
#define lowbit(x) ((x) & (-x))
#define RE return;
#define Yes cout << "Yes" << endl;
#define YES cout << "YES" << endl;
#define No cout << "No" << endl;
#define NO cout << "NO" << endl;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define sz(x) (int)(x).size()

void solve() {
    int n, k;
    cin >> n >> k;
    V<int> w(n + 1, 0);
    map<int, int> mp2;
    FOR(i, 1, n) cin >> w[i], mp2[w[i]]++;

    for (auto [x, y] : mp2) {
        if (y >= k) {
            cout << 0;
            RE;
        }
    }

    map<int, V<int>> mp;

    FOR(i, 1, n) {
        int t = w[i];
        int cnt = 0;
        mp[t].eb(cnt);
        while (t) {
            t /= 2;
            cnt++;
            mp[t].eb(cnt);
        }
    }

    int ans = 1e18;

    for (auto &[x, y] : mp) {
        sort(ALL(y));
        if (sz(y) < k) {
            continue;
        }

        int tot = 0;

        FOR(i, 0, k - 1) tot += y[i];
        ans = min(ans, tot);
    }

    cout << ans;
}

signed main() {
    int Task = 1;

    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    while (Task--) {
        solve();
    }

    return 0;
}